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From "Bikas Saha (Assigned) (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (MAPREDUCE-3353) Need a RM->AM channel to inform AMs about faulty/unhealthy/lost nodes
Date Wed, 22 Feb 2012 01:12:48 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3353?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Bikas Saha reassigned MAPREDUCE-3353:
-------------------------------------

    Assignee: Bikas Saha  (was: Vinod Kumar Vavilapalli)
    
> Need a RM->AM channel to inform AMs about faulty/unhealthy/lost nodes
> ---------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3353
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3353
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: applicationmaster, mrv2, resourcemanager
>    Affects Versions: 0.23.0
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Bikas Saha
>            Priority: Critical
>             Fix For: 0.23.2
>
>
> When a node gets lost or turns faulty, AM needs to know about that event so that it can
take some action like for e.g. re-executing map tasks whose intermediate output live on that
faulty node.

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